Loans and Allowance for Credit Losses - Schedule of Allowance for Credit Losses and Recorded Investment in Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	$ 19,148	$ 18,943	$ 17,861	$ 19,033
Charge-offs	(190)	(1,014)	(389)	(1,134)
Recoveries	56	23	100	53
Allowance for Loan Losses, Ending balance	19,264	17,952	19,264	17,952
Ending balance: individually evaluated for impairment	549	687	549	687	$ 820
Ending balance: collectively evaluated for impairment	18,715	17,265	18,715	17,265	17,041
Loans Receivable, Ending balance	1,615,966	1,527,128	1,615,966	1,527,128	1,538,610
Loans receivables: Ending balance: individually evaluated for impairment	2,549	5,915	2,549	5,915	6,115
Loans Receivable: Ending balance: collectively evaluated for impairment	1,613,417	1,521,213	1,613,417	1,521,213	1,532,495
Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	250	0	74	0
Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			1,618
Commercial and Industrial
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	1,941	3,116	2,848	3,176
Charge-offs	(81)	(70)	(110)	(167)
Recoveries	32	20	42	35
Allowance for Loan Losses, Ending balance	1,511	2,938	1,511	2,938
Ending balance: individually evaluated for impairment	368	687	368	687	628
Ending balance: collectively evaluated for impairment	1,143	2,251	1,143	2,251	2,220
Loans Receivable, Ending balance	154,027	176,692	154,027	176,692	178,762
Loans receivables: Ending balance: individually evaluated for impairment	470	839	470	839	781
Loans Receivable: Ending balance: collectively evaluated for impairment	153,557	175,853	153,557	175,853	177,981
Commercial and Industrial \| Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	(381)	(128)	(507)	(106)
Commercial and Industrial \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			(762)
Commercial Real Estate
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	11,728	10,839	10,016	10,716
Charge-offs	0	(831)	0	(831)
Recoveries	0	0	0	0
Allowance for Loan Losses, Ending balance	11,898	9,989	11,898	9,989
Ending balance: individually evaluated for impairment	181	0	181	0	192
Ending balance: collectively evaluated for impairment	11,717	9,989	11,717	9,989	9,824
Loans Receivable, Ending balance	892,365	823,827	892,365	823,827	821,805
Loans receivables: Ending balance: individually evaluated for impairment	1,541	5,076	1,541	5,076	5,334
Loans Receivable: Ending balance: collectively evaluated for impairment	890,824	818,751	890,824	818,751	816,471
Commercial Real Estate \| Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	170	(19)	776	104
Commercial Real Estate \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			1,106
Commercial Real Estate Construction
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	1,885	818	1,000	616
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for Loan Losses, Ending balance	2,164	831	2,164	831
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	2,164	831	2,164	831	1,000
Loans Receivable, Ending balance	86,508	66,189	86,508	66,189	80,470
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	86,508	66,189	86,508	66,189	80,470
Commercial Real Estate Construction \| Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	279	13	(183)	215
Commercial Real Estate Construction \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			1,347
Residential Mortgage
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	3,075	3,199	3,029	3,235
Charge-offs	0	0	0	(3)
Recoveries	0	0	0	5
Allowance for Loan Losses, Ending balance	3,153	3,110	3,153	3,110
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	3,153	3,110	3,153	3,110	3,029
Loans Receivable, Ending balance	384,304	360,661	384,304	360,661	362,098
Loans receivables: Ending balance: individually evaluated for impairment	343	0	343	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	383,961	360,661	383,961	360,661	362,098
Residential Mortgage \| Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	78	(89)	(173)	(127)
Residential Mortgage \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			297
Home Equity Lines of Credit
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	388	396	347	501
Charge-offs	0	(33)	0	(33)
Recoveries	0	0	0	0
Allowance for Loan Losses, Ending balance	393	366	393	366
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	393	366	393	366	347
Loans Receivable, Ending balance	88,687	87,555	88,687	87,555	84,141
Loans receivables: Ending balance: individually evaluated for impairment	195	0	195	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	88,492	87,555	88,492	87,555	84,141
Home Equity Lines of Credit \| Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	5	3	29	(102)
Home Equity Lines of Credit \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			17
Consumer
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	131	427	376	408
Charge-offs	(109)	(80)	(279)	(100)
Recoveries	24	3	58	13
Allowance for Loan Losses, Ending balance	145	438	145	438
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	145	438	145	438	376
Loans Receivable, Ending balance	10,075	12,204	10,075	12,204	11,334
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	10,075	12,204	10,075	12,204	11,334
Consumer \| Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	99	88	132	117
Consumer \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			(142)
Unallocated
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	0	148	245	381
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for Loan Losses, Ending balance	0	280	0	280
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	0	280	0	280	245
Loans Receivable, Ending balance	0	0	0	0	0
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	0	0	0	0	$ 0
Unallocated \| Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	$ 0	$ 132	0	$ (101)
Unallocated \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			$ (245)

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Amount of increase in allowance for credit loss on financing receivable from recovery.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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